test case for varargs functions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29877 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/ARM/vargs2.ll b/test/CodeGen/ARM/vargs2.ll
new file mode 100644 (file)
index 0000000..7f8d82e
--- /dev/null
+++ b/test/CodeGen/ARM/vargs2.ll
@@ -0,0 +1,33 @@
+; RUN: llvm-as < %s | llc -march=arm
+%str = internal constant [4 x sbyte] c"%d\0A\00"               ; <[4 x sbyte]*> [#uses=1]
+
+implementation   ; Functions:
+
+void %f(int %a, ...) {
+entry:
+       %va = alloca sbyte*, align 4            ; <sbyte**> [#uses=4]
+       call void %llvm.va_start( sbyte** %va )
+       br label %bb
+
+bb:            ; preds = %bb, %entry
+       %a_addr.0 = phi int [ %a, %entry ], [ %tmp5, %bb ]              ; <int> [#uses=2]
+       %tmp = volatile load sbyte** %va                ; <sbyte*> [#uses=2]
+       %tmp2 = getelementptr sbyte* %tmp, int 4                ; <sbyte*> [#uses=1]
+       volatile store sbyte* %tmp2, sbyte** %va
+       %tmp5 = add int %a_addr.0, -1           ; <int> [#uses=1]
+       %tmp = seteq int %a_addr.0, 1           ; <bool> [#uses=1]
+       br bool %tmp, label %bb7, label %bb
+
+bb7:           ; preds = %bb
+       %tmp3 = cast sbyte* %tmp to int*                ; <int*> [#uses=1]
+       %tmp = load int* %tmp3          ; <int> [#uses=1]
+       %tmp10 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([4 x sbyte]* %str, int 0, uint 0), int %tmp )           ; <int> [#uses=0]
+       call void %llvm.va_end( sbyte** %va )
+       ret void
+}
+
+declare void %llvm.va_start(sbyte**)
+
+declare int %printf(sbyte*, ...)
+
+declare void %llvm.va_end(sbyte**)